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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">Standard library header</span> &lt;atomic&gt; <span class="t-mark-rev t-since-cxx11">(C++11)</span></h1>
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<tr class="t-nv"><td colspan="5"> <a href="span.html" title="cpp/header/span"><tt>&lt;span&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="array.html" title="cpp/header/array"><tt>&lt;array&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="vector.html" title="cpp/header/vector"><tt>&lt;vector&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="deque.html" title="cpp/header/deque"><tt>&lt;deque&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="forward_list.html" title="cpp/header/forward list"><tt>&lt;forward_list&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="list.html" title="cpp/header/list"><tt>&lt;list&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="map.html" title="cpp/header/map"><tt>&lt;map&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="set.html" title="cpp/header/set"><tt>&lt;set&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="queue.html" title="cpp/header/queue"><tt>&lt;queue&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="unordered_map.html" title="cpp/header/unordered map"><tt>&lt;unordered_map&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="unordered_set.html" title="cpp/header/unordered set"><tt>&lt;unordered_set&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="stack.html" title="cpp/header/stack"><tt>&lt;stack&gt;</tt></a></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Iterators</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iterator.html" title="cpp/header/iterator"><tt>&lt;iterator&gt;</tt></a></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Ranges</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ranges.html" title="cpp/header/ranges"><tt>&lt;ranges&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Algorithms</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="algorithm.html" title="cpp/header/algorithm"><tt>&lt;algorithm&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="execution.html" title="cpp/header/execution"><tt>&lt;execution&gt;</tt></a> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Numerics</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="complex.html" title="cpp/header/complex"><tt>&lt;complex&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="random.html" title="cpp/header/random"><tt>&lt;random&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="valarray.html" title="cpp/header/valarray"><tt>&lt;valarray&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numeric.html" title="cpp/header/numeric"><tt>&lt;numeric&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="bit.html" title="cpp/header/bit"><tt>&lt;bit&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numbers.html" title="cpp/header/numbers"><tt>&lt;numbers&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="cfenv.html" title="cpp/header/cfenv"><tt>&lt;cfenv&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cmath.html" title="cpp/header/cmath"><tt>&lt;cmath&gt;</tt></a></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Input/Output</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="iosfwd.html" title="cpp/header/iosfwd"><tt>&lt;iosfwd&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ios.html" title="cpp/header/ios"><tt>&lt;ios&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iomanip.html" title="cpp/header/iomanip"><tt>&lt;iomanip&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="streambuf.html" title="cpp/header/streambuf"><tt>&lt;streambuf&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="istream.html" title="cpp/header/istream"><tt>&lt;istream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ostream.html" title="cpp/header/ostream"><tt>&lt;ostream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iostream.html" title="cpp/header/iostream"><tt>&lt;iostream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="syncstream.html" title="cpp/header/syncstream"><tt>&lt;syncstream&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="spanstream.html" title="cpp/header/spanstream"><tt>&lt;spanstream&gt;</tt></a> <span class="t-mark-rev t-since-cxx23">(C++23)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="sstream.html" title="cpp/header/sstream"><tt>&lt;sstream&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="fstream.html" title="cpp/header/fstream"><tt>&lt;fstream&gt;</tt></a></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="cstdio.html" title="cpp/header/cstdio"><tt>&lt;cstdio&gt;</tt></a></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cinttypes.html" title="cpp/header/cinttypes"><tt>&lt;cinttypes&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="strstream.html" title="cpp/header/strstream"><tt>&lt;strstream&gt;</tt></a> <span class="t-mark">(C++98/)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Regular expressions</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/header/regex"><tt>&lt;regex&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Filesystem support</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="filesystem.html" title="cpp/header/filesystem"><tt>&lt;filesystem&gt;</tt></a> <span class="t-mark-rev t-since-cxx17">(C++17)</span></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Thread support</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/header/thread"><tt>&lt;thread&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <strong class="selflink"><tt>&lt;atomic&gt;</tt></strong> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="mutex.html" title="cpp/header/mutex"><tt>&lt;mutex&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="shared_mutex.html" title="cpp/header/shared mutex"><tt>&lt;shared_mutex&gt;</tt></a> <span class="t-mark-rev t-since-cxx14">(C++14)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="condition_variable.html" title="cpp/header/condition variable"><tt>&lt;condition_variable&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span>  </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="future.html" title="cpp/header/future"><tt>&lt;future&gt;</tt></a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="stop_token.html" title="cpp/header/stop token"><tt>&lt;stop_token&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="semaphore.html" title="cpp/header/semaphore"><tt>&lt;semaphore&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="latch.html" title="cpp/header/latch"><tt>&lt;latch&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="barrier.html" title="cpp/header/barrier"><tt>&lt;barrier&gt;</tt></a> <span class="t-mark-rev t-since-cxx20">(C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <br>
</td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> C compatibility</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="cstdbool.html" title="cpp/header/cstdbool"><tt>&lt;cstdbool&gt;</tt></a> <span class="t-mark">(C++11/17/20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="ccomplex.html" title="cpp/header/ccomplex"><tt>&lt;ccomplex&gt;</tt></a> <span class="t-mark">(C++11/17/20)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="ctgmath.html" title="cpp/header/ctgmath"><tt>&lt;ctgmath&gt;</tt></a> <span class="t-mark">(C++11/17/20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="cstdalign.html" title="cpp/header/cstdalign"><tt>&lt;cstdalign&gt;</tt></a> <span class="t-mark">(C++11/17/20)</span></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"> <a href="ciso646.html" title="cpp/header/ciso646"><tt>&lt;ciso646&gt;</tt></a> <span class="t-mark-rev t-until-cxx20">(until C++20)</span></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="stdatomic.h.html" title="cpp/header/stdatomic.h"><tt>&lt;stdatomic.h&gt;</tt></a></td></tr>
</table></div></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<p>This header is part of the <a href="../thread.html" title="cpp/thread">concurrency support</a> library.
</p>
<table class="t-dsc-begin">

<tr>
<td colspan="2"> <h3> <span class="mw-headline" id="Classes">Classes</span></h3>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomic class template and specializations for bool, integral, and pointer types  <br> <span class="t-mark">(class template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_ref.html" title="cpp/atomic/atomic ref"> <span class="t-lines"><span>atomic_ref</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   provides atomic operations on non-atomic objects   <br> <span class="t-mark">(class template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag.html" title="cpp/atomic/atomic flag"> <span class="t-lines"><span>atomic_flag</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   the lock-free boolean atomic type  <br> <span class="t-mark">(class)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/memory_order.html" title="cpp/atomic/memory order"> <span class="t-lines"><span>memory_order</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   defines memory ordering constraints for the given atomic operation  <br> <span class="t-mark">(enum)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_bool</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">bool</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_char</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_schar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">signed</span> <span class="kw4">char</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uchar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">char</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_short</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">short</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_ushort</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">short</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">int</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_long</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">long</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_ulong</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">long</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_llong</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">long</span> <span class="kw4">long</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_ullong</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_char8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span>char8_t<span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_char16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_char32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_wchar_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw112">std::<span class="me2">int8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw126">std::<span class="me2">uint8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw113">std::<span class="me2">int16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw127">std::<span class="me2">uint16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw114">std::<span class="me2">int32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw128">std::<span class="me2">uint32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw115">std::<span class="me2">int64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw129">std::<span class="me2">uint64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_least8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw120">std::<span class="me2">int_least8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_least8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw134">std::<span class="me2">uint_least8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_least16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw121">std::<span class="me2">int_least16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_least16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw135">std::<span class="me2">uint_least16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_least32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw122">std::<span class="me2">int_least32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_least32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw136">std::<span class="me2">uint_least32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_least64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw123">std::<span class="me2">int_least64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_least64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw137">std::<span class="me2">uint_least64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_fast8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw116">std::<span class="me2">int_fast8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_fast8_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw130">std::<span class="me2">uint_fast8_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_fast16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw117">std::<span class="me2">int_fast16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_fast16_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw131">std::<span class="me2">uint_fast16_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_fast32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw118">std::<span class="me2">int_fast32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_fast32_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw132">std::<span class="me2">uint_fast32_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_int_fast64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw119">std::<span class="me2">int_fast64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uint_fast64_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw133">std::<span class="me2">uint_fast64_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_intptr_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw125">std::<span class="me2">intptr_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uintptr_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark">(optional)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw139">std::<span class="me2">uintptr_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_size_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/size_t.html"><span class="kw106">std::<span class="me2">size_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_ptrdiff_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/ptrdiff_t.html"><span class="kw107">std::<span class="me2">ptrdiff_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_intmax_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw124">std::<span class="me2">intmax_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_uintmax_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="../atomic/atomic.html"><span class="kw2070">std::<span class="me2">atomic</span></span></a><span class="sy1">&lt;</span><a href="../types/integer.html"><span class="kw138">std::<span class="me2">uintmax_t</span></span></a><span class="sy1">&gt;</span></span></span>  <br> <span class="t-mark">(typedef)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_signed_lock_free</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   a signed integral atomic type that is lock-free and for which waiting/notifying is most efficient <br> <span class="t-mark">(typedef)</span> </td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic.html" title="cpp/atomic/atomic"> <span class="t-lines"><span>atomic_unsigned_lock_free</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   a unsigned integral atomic type that is lock-free and for which waiting/notifying is most efficient <br> <span class="t-mark">(typedef)</span> </td></tr>

<tr>
<td colspan="2"> <h3> <span class="mw-headline" id="Functions">Functions</span></h3>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_is_lock_free.html" title="cpp/atomic/atomic is lock free"> <span class="t-lines"><span>atomic_is_lock_free</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   checks if the atomic type's operations are lock-free  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_store.html" title="cpp/atomic/atomic store"> <span class="t-lines"><span>atomic_store</span><span>atomic_store_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically replaces the value of the atomic object with a non-atomic argument  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_load.html" title="cpp/atomic/atomic load"> <span class="t-lines"><span>atomic_load</span><span>atomic_load_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically obtains the value stored in an atomic object  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_exchange.html" title="cpp/atomic/atomic exchange"> <span class="t-lines"><span>atomic_exchange</span><span>atomic_exchange_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically replaces the value of the atomic object with non-atomic argument and returns the old value of the atomic  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_compare_exchange.html" title="cpp/atomic/atomic compare exchange"> <span class="t-lines"><span>atomic_compare_exchange_weak</span><span>atomic_compare_exchange_weak_explicit</span><span>atomic_compare_exchange_strong</span><span>atomic_compare_exchange_strong_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically compares the value of the atomic object with non-atomic argument and performs atomic exchange if equal or atomic load if not  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_fetch_add.html" title="cpp/atomic/atomic fetch add"> <span class="t-lines"><span>atomic_fetch_add</span><span>atomic_fetch_add_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   adds a non-atomic value to an atomic object and obtains the previous value of the atomic  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_fetch_sub.html" title="cpp/atomic/atomic fetch sub"> <span class="t-lines"><span>atomic_fetch_sub</span><span>atomic_fetch_sub_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   subtracts a non-atomic value from an atomic object and obtains the previous value of the atomic  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_fetch_and.html" title="cpp/atomic/atomic fetch and"> <span class="t-lines"><span>atomic_fetch_and</span><span>atomic_fetch_and_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   replaces the atomic object with the result of bitwise AND with a non-atomic argument and obtains the previous value of the atomic  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_fetch_or.html" title="cpp/atomic/atomic fetch or"> <span class="t-lines"><span>atomic_fetch_or</span><span>atomic_fetch_or_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   replaces the atomic object with the result of bitwise OR with a non-atomic argument and obtains the previous value of the atomic  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_fetch_xor.html" title="cpp/atomic/atomic fetch xor"> <span class="t-lines"><span>atomic_fetch_xor</span><span>atomic_fetch_xor_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   replaces the atomic object with the result of bitwise XOR with a non-atomic argument and obtains the previous value of the atomic   <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_wait.html" title="cpp/atomic/atomic wait"> <span class="t-lines"><span>atomic_wait</span><span>atomic_wait_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   blocks the thread until notified and the atomic value changes  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_notify_one.html" title="cpp/atomic/atomic notify one"> <span class="t-lines"><span>atomic_notify_one</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   notifies a thread blocked in atomic_wait  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_notify_all.html" title="cpp/atomic/atomic notify all"> <span class="t-lines"><span>atomic_notify_all</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   notifies all threads blocked in atomic_wait  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_test.html" title="cpp/atomic/atomic flag test"> <span class="t-lines"><span>atomic_flag_test</span><span>atomic_flag_test_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   atomically returns the value of the flag  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_test_and_set.html" title="cpp/atomic/atomic flag test and set"> <span class="t-lines"><span>atomic_flag_test_and_set</span><span>atomic_flag_test_and_set_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically sets the flag to <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> and returns its previous value  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_clear.html" title="cpp/atomic/atomic flag clear"> <span class="t-lines"><span>atomic_flag_clear</span><span>atomic_flag_clear_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   atomically sets the value of the flag to <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span>  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_wait.html" title="cpp/atomic/atomic flag wait"> <span class="t-lines"><span>atomic_flag_wait</span><span>atomic_flag_wait_explicit</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   blocks the thread until notified and the flag changes  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_notify_one.html" title="cpp/atomic/atomic flag notify one"> <span class="t-lines"><span>atomic_flag_notify_one</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   notifies a thread blocked in atomic_flag_wait  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_flag_notify_all.html" title="cpp/atomic/atomic flag notify all"> <span class="t-lines"><span>atomic_flag_notify_all</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div></div>
</td>
<td>   notifies all threads blocked in atomic_flag_wait  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_init.html" title="cpp/atomic/atomic init"> <span class="t-lines"><span>atomic_init</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx20">(deprecated in C++20)</span></span></span></div></div>
</td>
<td>   non-atomic initialization of a default-constructed atomic object  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/kill_dependency.html" title="cpp/atomic/kill dependency"> <span class="t-lines"><span>kill_dependency</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   removes the specified object from the <span class="t-lc"><a href="../atomic/memory_order.html" title="cpp/atomic/memory order">std::memory_order_consume</a></span> dependency tree  <br> <span class="t-mark">(function template)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_thread_fence.html" title="cpp/atomic/atomic thread fence"> <span class="t-lines"><span>atomic_thread_fence</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   generic memory order-dependent fence synchronization primitive  <br> <span class="t-mark">(function)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/atomic_signal_fence.html" title="cpp/atomic/atomic signal fence"> <span class="t-lines"><span>atomic_signal_fence</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   fence between a thread and a signal handler executed in the same thread  <br> <span class="t-mark">(function)</span> </td></tr>

<tr>
<td colspan="2"> <h3> <span class="mw-headline" id="Macros">Macros</span></h3>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/ATOMIC_VAR_INIT.html" title="cpp/atomic/ATOMIC VAR INIT"> <span class="t-lines"><span>ATOMIC_VAR_INIT</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span><span class="t-mark-rev t-deprecated-cxx20">(deprecated in C++20)</span></span></span></div></div>
</td>
<td>   constant initialization of an atomic variable of static storage duration  <br> <span class="t-mark">(function macro)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="../atomic/ATOMIC_FLAG_INIT.html" title="cpp/atomic/ATOMIC FLAG INIT"> <span class="t-lines"><span>ATOMIC_FLAG_INIT</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   initializes an <span class="t-lc"><a href="../atomic/atomic_flag.html" title="cpp/atomic/atomic flag">std::atomic_flag</a></span> to <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span>  <br> <span class="t-mark">(macro constant)</span> </td></tr>
</table>
<h3><span class="mw-headline" id="Synopsis">Synopsis</span></h3>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="coMULTI">/* until C++20:
  typedef enum memory_order {
    memory_order_relaxed,
    memory_order_consume,
    memory_order_acquire,
    memory_order_release,
    memory_order_acq_rel,
    memory_order_seq_cst
  } memory_order;
  */</span>
 
  <span class="kw2">enum</span> <span class="kw1">class</span> memory_order <span class="sy4">:</span> <span class="coMULTI">/* unspecified */</span> <span class="br0">{</span>
    relaxed, consume, acquire, release, acq_rel, seq_cst
  <span class="br0">}</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_relaxed <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">relaxed</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_consume <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">consume</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_acquire <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">acquire</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_release <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">release</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_acq_rel <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">acq_rel</span><span class="sy4">;</span>
  <span class="kw1">inline</span> <span class="kw4">constexpr</span> memory_order memory_order_seq_cst <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="sy4">;</span>
 
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T kill_dependency<span class="br0">(</span>T y<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="co1">// lock-free property</span>
  <span class="co2">#define ATOMIC_BOOL_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_CHAR_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_CHAR8_T_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_CHAR16_T_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_CHAR32_T_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_WCHAR_T_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_SHORT_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_INT_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_LONG_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_LLONG_LOCK_FREE /* unspecified */</span>
  <span class="co2">#define ATOMIC_POINTER_LOCK_FREE /* unspecified */</span>
 
  <span class="co1">// class template atomic_ref</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic_ref<span class="sy4">;</span>
  <span class="co1">// partial specialization for pointers</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic_ref<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="co1">// class template atomic</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic<span class="sy4">;</span>
  <span class="co1">// partial specialization for pointers</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="co1">// non-member functions</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_is_lock_free<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_is_lock_free<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_store<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_store<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_store_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_store_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_load<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_load<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_load_explicit<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_load_explicit<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_exchange<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_exchange<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_exchange_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_exchange_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_weak<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                      <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                      <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_weak<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                      <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                      <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_strong<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                        <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                        <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_strong<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                        <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                        <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_weak_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                               <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                               <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                               memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_weak_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                               <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                               <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                               memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_strong_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                                 <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                                 <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                                 memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">bool</span> atomic_compare_exchange_strong_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>,
                                                 <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="sy2">*</span>,
                                                 <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                                 memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_add<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_add<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_add_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_add_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_sub<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_sub<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_sub_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_sub_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">difference_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_and<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_and<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_and_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_and_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_or<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_or<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_or_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_or_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                               memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_xor<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_xor<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_xor_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    T atomic_fetch_xor_explicit<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                                memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_wait<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_wait<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_wait_explicit<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                              memory_order<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_wait_explicit<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span>,
                              memory_order<span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_notify_one<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_notify_one<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_notify_all<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_notify_all<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
 
  <span class="co1">// type aliases</span>
  <span class="kw1">using</span> atomic_bool           <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">bool</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_char           <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_schar          <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">signed</span> <span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uchar          <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_short          <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">short</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_ushort         <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">short</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int            <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint           <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">int</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_long           <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">long</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_ulong          <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">long</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_llong          <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">long</span> <span class="kw4">long</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_ullong         <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_char8_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>char8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_char16_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">char16_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_char32_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">char32_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_wchar_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="kw1">using</span> atomic_int8_t         <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint8_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int16_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint16_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int32_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint32_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int64_t        <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint64_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="kw1">using</span> atomic_int_least8_t   <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_least8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_least8_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_least8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_least16_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_least16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_least16_t <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_least16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_least32_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_least32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_least32_t <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_least32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_least64_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_least64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_least64_t <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_least64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="kw1">using</span> atomic_int_fast8_t    <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_fast8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_fast8_t   <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_fast8_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_fast16_t   <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_fast16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_fast16_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_fast16_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_fast32_t   <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_fast32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_fast32_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_fast32_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_int_fast64_t   <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>int_fast64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uint_fast64_t  <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uint_fast64_t<span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="kw1">using</span> atomic_intptr_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>intptr_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uintptr_t      <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uintptr_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_size_t         <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>size_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_ptrdiff_t      <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>ptrdiff_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_intmax_t       <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>intmax_t<span class="sy1">&gt;</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_uintmax_t      <span class="sy1">=</span> atomic<span class="sy1">&lt;</span>uintmax_t<span class="sy1">&gt;</span><span class="sy4">;</span>
 
  <span class="kw1">using</span> atomic_signed_lock_free   <span class="sy1">=</span> <span class="coMULTI">/* see description */</span><span class="sy4">;</span>
  <span class="kw1">using</span> atomic_unsigned_lock_free <span class="sy1">=</span> <span class="coMULTI">/* see description */</span><span class="sy4">;</span>
 
  <span class="co1">// flag type and operations</span>
  <span class="kw1">struct</span> atomic_flag<span class="sy4">;</span>
 
  <span class="kw4">bool</span> atomic_flag_test<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test<span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_explicit<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_explicit<span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_and_set<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_and_set<span class="br0">(</span>atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_and_set_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">bool</span> atomic_flag_test_and_set_explicit<span class="br0">(</span>atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_clear<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_clear<span class="br0">(</span>atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_clear_explicit<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_clear_explicit<span class="br0">(</span>atomic_flag<span class="sy2">*</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="kw4">void</span> atomic_flag_wait<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span>, <span class="kw4">bool</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_wait<span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy2">*</span>, <span class="kw4">bool</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_wait_explicit<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span>,
                                 <span class="kw4">bool</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_wait_explicit<span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy2">*</span>,
                                 <span class="kw4">bool</span>, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_notify_one<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_notify_one<span class="br0">(</span>atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_notify_all<span class="br0">(</span><span class="kw4">volatile</span> atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">void</span> atomic_flag_notify_all<span class="br0">(</span>atomic_flag<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="co1">// fences</span>
  <span class="kw4">extern</span> <span class="st0">"C"</span> <span class="kw4">void</span> atomic_thread_fence<span class="br0">(</span>memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw4">extern</span> <span class="st0">"C"</span> <span class="kw4">void</span> atomic_signal_fence<span class="br0">(</span>memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="co1">// deprecated</span>
<span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_init<span class="br0">(</span><span class="kw4">volatile</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span>
    <span class="kw4">void</span> atomic_init<span class="br0">(</span>atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy2">*</span>, <span class="kw1">typename</span> atomic<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value_type</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
  <span class="co2">#define ATOMIC_VAR_INIT(value) /* see description */</span>
 
  <span class="co2">#define ATOMIC_FLAG_INIT /* see description */</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Class_template_std::atomic">Class template <span class="t-lc"><a href="../atomic/atomic.html" title="cpp/atomic/atomic">std::atomic</a></span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic <span class="br0">{</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> T<span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="co1">// operations on atomic types</span>
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="br0">(</span>is_nothrow_default_constructible_v<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span>T<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    T load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> store<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> store<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T operator<span class="sy1">=</span><span class="br0">(</span>T<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T operator<span class="sy1">=</span><span class="br0">(</span>T<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T exchange<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T exchange<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                               memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                                 memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> wait<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_for_integral_types">Specializations of <span class="t-lc"><a href="../atomic/atomic.html" title="cpp/atomic/atomic">std::atomic</a></span> for integral types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> atomic<span class="sy1">&lt;</span><span class="coMULTI">/* integral */</span><span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> <span class="coMULTI">/* integral */</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> value_type<span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* integral */</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* integral */</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* integral */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* integral */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> exchange<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                        memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> exchange<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                        memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_and<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_and<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_or<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_or<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_xor<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_xor<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                         memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">&amp;</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">&amp;</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">|</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">|</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">^</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">^</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
              memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="coMULTI">/* integral */</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_for_floating-point_types">Specializations of <span class="t-lc"><a href="../atomic/atomic.html" title="cpp/atomic/atomic">std::atomic</a></span> for floating-point types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> atomic<span class="sy1">&lt;</span><span class="coMULTI">/* floating-point */</span><span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> <span class="coMULTI">/* floating-point */</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> value_type<span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* floating-point */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* floating-point */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> exchange<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                            memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> exchange<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                            memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
              memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
              memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_for_pointer_types">Specializations of <span class="t-lc"><a href="../atomic/atomic.html" title="cpp/atomic/atomic">std::atomic</a></span> for pointer types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span> <span class="br0">{</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> T<span class="sy2">*</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> ptrdiff_t<span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">constexpr</span> atomic<span class="br0">(</span>T<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic<span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> store<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy1">=</span><span class="br0">(</span>T<span class="sy2">*</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy1">=</span><span class="br0">(</span>T<span class="sy2">*</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> exchange<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> exchange<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>, memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>, memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>, memory_order, memory_order<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>, memory_order, memory_order<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                               memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                               memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                                 memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                                 memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> fetch_add<span class="br0">(</span>ptrdiff_t, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> fetch_add<span class="br0">(</span>ptrdiff_t, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> fetch_sub<span class="br0">(</span>ptrdiff_t, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> fetch_sub<span class="br0">(</span>ptrdiff_t, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span>ptrdiff_t<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span>ptrdiff_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span>ptrdiff_t<span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span>ptrdiff_t<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> wait<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Class_template_std::atomic_ref">Class template <span class="t-lc">std::atomic_ref</span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic_ref <span class="br0">{</span>
  <span class="kw1">private</span><span class="sy4">:</span>
    T<span class="sy2">*</span> ptr<span class="sy4">;</span>             <span class="co1">// exposition only</span>
  <span class="kw1">public</span><span class="sy4">:</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> T<span class="sy4">;</span>
    <span class="kw4">static</span> <span class="kw4">constexpr</span> size_t required_alignment <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">explicit</span> atomic_ref<span class="br0">(</span>T<span class="sy3">&amp;</span><span class="br0">)</span><span class="sy4">;</span>
    atomic_ref<span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic_ref<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T operator<span class="sy1">=</span><span class="br0">(</span>T<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T exchange<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy3">&amp;</span>, T,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span>T, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_ref_for_integral_types">Specializations of <span class="t-lc">std::atomic_ref</span> for integral types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> atomic_ref<span class="sy1">&lt;</span><span class="coMULTI">/* integral */</span><span class="sy1">&gt;</span> <span class="br0">{</span>
  <span class="kw1">private</span><span class="sy4">:</span>
    <span class="coMULTI">/* integral */</span><span class="sy2">*</span> ptr<span class="sy4">;</span>        <span class="co1">// exposition only</span>
  <span class="kw1">public</span><span class="sy4">:</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> <span class="coMULTI">/* integral */</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> value_type<span class="sy4">;</span>
    <span class="kw4">static</span> <span class="kw4">constexpr</span> size_t required_alignment <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">explicit</span> atomic_ref<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="sy4">;</span>
    atomic_ref<span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic_ref<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* integral */</span>, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* integral */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> exchange<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                      memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* integral */</span>,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                       memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                       memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_and<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                       memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_or<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                      memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> fetch_xor<span class="br0">(</span><span class="coMULTI">/* integral */</span>,
                       memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator<span class="sy3">&amp;</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* integral */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* integral */</span> operator</pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_ref_for_floating-point_types">Specializations of <span class="t-lc">std::atomic_ref</span> for floating-point types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;&gt;</span> <span class="kw1">struct</span> atomic_ref<span class="sy1">&lt;</span><span class="coMULTI">/* floating-point */</span><span class="sy1">&gt;</span> <span class="br0">{</span>
  <span class="kw1">private</span><span class="sy4">:</span>
    <span class="coMULTI">/* floating-point */</span><span class="sy2">*</span> ptr<span class="sy4">;</span>  <span class="co1">// exposition only</span>
  <span class="kw1">public</span><span class="sy4">:</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> <span class="coMULTI">/* floating-point */</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> value_type<span class="sy4">;</span>
    <span class="kw4">static</span> <span class="kw4">constexpr</span> size_t required_alignment <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">explicit</span> atomic_ref<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="sy4">;</span>
    atomic_ref<span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic_ref<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator <span class="coMULTI">/* floating-point */</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> exchange<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                            memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="sy3">&amp;</span>, <span class="coMULTI">/* floating-point */</span>,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> fetch_add<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> fetch_sub<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>,
                             memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="coMULTI">/* floating-point */</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span><span class="coMULTI">/* floating-point */</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="coMULTI">/* floating-point */</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Specializations_of_std::atomic_ref_for_pointer_types">Specializations of <span class="t-lc">std::atomic_ref</span> for pointer types</span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw1">struct</span> atomic_ref<span class="sy1">&lt;</span>T<span class="sy2">*</span><span class="sy1">&gt;</span> <span class="br0">{</span>
  <span class="kw1">private</span><span class="sy4">:</span>
    T<span class="sy2">**</span> ptr<span class="sy4">;</span>        <span class="co1">// exposition only</span>
  <span class="kw1">public</span><span class="sy4">:</span>
    <span class="kw1">using</span> value_type <span class="sy1">=</span> T<span class="sy2">*</span><span class="sy4">;</span>
    <span class="kw1">using</span> difference_type <span class="sy1">=</span> ptrdiff_t<span class="sy4">;</span>
    <span class="kw4">static</span> <span class="kw4">constexpr</span> size_t required_alignment <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
 
    <span class="kw4">static</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_always_lock_free <span class="sy1">=</span> <span class="coMULTI">/* implementation-defined */</span><span class="sy4">;</span>
    <span class="kw4">bool</span> is_lock_free<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw1">explicit</span> atomic_ref<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="sy4">;</span>
    atomic_ref<span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic_ref<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_ref<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">void</span> store<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy1">=</span><span class="br0">(</span>T<span class="sy2">*</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> load<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    operator T<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> exchange<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                               memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                                 memory_order, memory_order<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_weak<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                               memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> compare_exchange_strong<span class="br0">(</span>T<span class="sy2">*</span><span class="sy3">&amp;</span>, T<span class="sy2">*</span>,
                                 memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> fetch_add<span class="br0">(</span>difference_type, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> fetch_sub<span class="br0">(</span>difference_type, memory_order <span class="sy1">=</span> memory_order_seq_cst<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="kw4">int</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span>difference_type<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    T<span class="sy2">*</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span>difference_type<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span>T<span class="sy2">*</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<h4><span class="mw-headline" id="Class_std::atomic_flag">Class <span class="t-lc"><a href="../atomic/atomic_flag.html" title="cpp/atomic/atomic flag">std::atomic_flag</a></span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
  <span class="kw1">struct</span> atomic_flag <span class="br0">{</span>
    <span class="kw4">constexpr</span> atomic_flag<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    atomic_flag<span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic_flag<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
    atomic_flag<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> atomic_flag<span class="sy3">&amp;</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
 
    <span class="kw4">bool</span> test<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> test<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> test_and_set<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">bool</span> test_and_set<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> clear<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> clear<span class="br0">(</span>memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
 
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="kw4">bool</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> wait<span class="br0">(</span><span class="kw4">bool</span>, memory_order <span class="sy1">=</span> memory_order<span class="sy4">::</span><span class="me2">seq_cst</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_one<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw4">volatile</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
    <span class="kw4">void</span> notify_all<span class="br0">(</span><span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span>
  <span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>

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